Electric insulation cable with shield

Abstract

There is provided an electric insulation cable with shield, including: conductors; an insulating layer provided on an outer periphery of the conductors; a braided shield provided on an outer periphery of the insulating layer; and a sheath provided on an outer periphery of the braided shield, wherein the sheath is made of a silane-crosslinked composition which is obtained by silane-crosslinking a non-halogen composition under a normal pressure, and the non-halogen composition includes 100 pts.mass of silane-grafted polymer obtained by graft copolymerizing a silane compound to the polymer including at least one of non-halogen rubber and ethylene-based copolymer, and includes 1 pts.mass or more and 10 pts.mass or less of an antioxidant.

What is claimed is: 
     
         1 . An electric insulation cable with shield, comprising:
 conductors;   an insulating layer provided on an outer periphery of the conductors;   a braided shield provided on an outer periphery of the insulating layer; and   a sheath provided on an outer periphery of the braided shield,   wherein the sheath is made of a silane-crosslinked composition which is obtained by silane-crosslinking a non-halogen composition under a normal pressure, and the non-halogen composition contains 100 pts.mass of silane-grafted polymer obtained by graft copolymerizing a silane compound to the polymer including at least one of non-halogen rubber and ethylene-based copolymer, and includes 1 pts.mass or more and 10 pts.mass or less of an antioxidant.   
     
     
         2 . The electric insulation cable with shield according to  claim 1 , wherein the non-halogen composition includes 1 pts.mass or more and 7.5 pts.mass or less of the antioxidant. 
     
     
         3 . The electric insulation cable with shield according to  claim 1 , wherein the antioxidant includes a hindered phenol compound and a thioether compound. 
     
     
         4 . The electric insulation cable with shield according to  claim 3 , wherein a ratio of the hindered phenol compound to the thioether compound is 1 or more and 6 or less. 
     
     
         5 . The electric insulation cable with shield according to  claim 1 , wherein the non-halogen composition further includes a flame retardant agent, and contains 10 pts.mass or more and 150 pts.mass or less of the flame retardant agent with respect to 100 pts.mass of the silane-grafted polymer. 
     
     
         6 . The electric insulation cable with shield according to  claim 1 , wherein the sheath is provided immediately on the shield. 
     
     
         7 . The electric insulation cable with shield according to  claim 1 , wherein the insulating layer is made of the silane-crosslinked composition, and is provided immediately on the conductors. 
     
     
         8 . The electric insulation cable with shield according to  claim 1 , wherein the oxidation inducing period of the silane-crosslinked composition at 230° C. is 100 minutes or more.